20023010033 has 4 divisors (see below), whose sum is σ = 21563241588. Its totient is φ = 18482778480.

The previous prime is 20023010011. The next prime is 20023010041. The reversal of 20023010033 is 33001032002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33001032002 = 2 ⋅16500516001.

It can be written as a sum of positive squares in 2 ways, for example, as 5825810929 + 14197199104 = 76327^2 + 119152^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023010033 - 2¹⁶ = 20022944497 is a prime.

It is a super-2 number, since 2×20023010033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023010093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770115758 + ... + 770115783.

It is an arithmetic number, because the mean of its divisors is an integer number (5390810397).

Almost surely, 2^20023010033 is an apocalyptic number.

It is an amenable number.

20023010033 is a deficient number, since it is larger than the sum of its proper divisors (1540231555).

20023010033 is a wasteful number, since it uses less digits than its factorization.

20023010033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540231554.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20023010033 its reverse (33001032002), we get a palindrome (53024042035).

The spelling of 20023010033 in words is "twenty billion, twenty-three million, ten thousand, thirty-three".